Research Article Details

Article ID: A15846
PMID: 28685131
Source: Can J Gastroenterol Hepatol
Title: Relationship between Nonalcoholic Fatty Liver Disease and Vitamin D Nutritional Status in Extreme Obesity.
Abstract: AIM: To evaluate the relationship of nonalcoholic fatty liver disease (NAFLD) with nutritional status of vitamin D in extreme obesity. METHODS: Descriptive cross-sectional study in individuals with class III obesity (BMI &#8805; 40&#8201;kg/m2), aged &#8805; 20 years to < 60 years. Data were obtained for weight, height, waist circumference (WC), and serum 25-hydroxyvitamin D (25(OH)D) levels. Vitamin D analysis was performed by high performance liquid chromatography (HPLC) and the cutoff points used for its classification were < 20&#8201;ng/mL for deficiency and 20-29.9&#8201;ng/ml for insufficiency. NAFLD gradation was conducted through histological evaluation by liver biopsy. RESULTS: The sample is comprised of 50 individuals (86% female). BMI and average weight were 44.1 &#177; 3.8&#8201;kg/m2 and 121.4 &#177; 21.4&#8201;kg, respectively. Sample distribution according to serum 25(OH)D levels showed 42% of deficiency and 48% of insufficiency. The diagnosis of NAFLD was confirmed in 100% of the individuals, of which 70% had steatosis and 30% had steatohepatitis. The highest percentage of 25(OH)D insufficiency was seen in individuals with steatosis (66%/n = 21) and steatohepatitis (93%/n = 16). All individuals with steatohepatitis presented VDD (p < 0.01). CONCLUSION: The results of this study showed high prevalence of serum 25(OH)D inadequacy in individuals with class III obesity, which worsens as the stage of liver disease progresses.
DOI: 10.1155/2017/9456897